Determination and Utilization of the Resistance of Sunflower Varieties to Downy Mildew

doi:10.3321/j.issn:1000-7091.1995.03.014

Abstract

Abstract: By the means of natural infection in the disease nursery and whole-seedling immersion (WSI) In the green-house, the resistance of sunflower varieties to downy mildew (Plasmopara holstedii (Farl.) Berl et de Toni)was determined The yield loss of susceptible varieties and the yield increasing effect of resistant varieties were also determined. 39 resistant varieties were screened out. There was no discovery discovery of resistans in edible sunflower.The oil-typed inbred lines, such as Liao 1045 and Fang3893, can be used as antigens of crossbreeding. Some varieties, such as Longkui Za 1, Fengkui Za 5 etc, resist several diseases and have high yield. They can directely be used in production.

Key words: Sunflower, Downy mildew, Varieties, Resistance

CLC Number:

S565.501

Wang Furong, Shi Xiuqin. Determination and Utilization of the Resistance of Sunflower Varieties to Downy Mildew[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1995, 10(3): 68-72. doi: 10.3321/j.issn:1000-7091.1995.03.014.

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